com.esri.arcgis.spatialanalyst
Class RasterMapAlgebraOp

java.lang.Object
  extended by com.esri.arcgis.spatialanalyst.RasterMapAlgebraOp
All Implemented Interfaces:
IGeoAnalysisEnvironment, IRasterAnalysisEnvironment, com.esri.arcgis.interop.RemoteObjRef, IMapAlgebraOp, ISupportErrorInfo, Serializable

public class RasterMapAlgebraOp
extends Object
implements com.esri.arcgis.interop.RemoteObjRef, IRasterAnalysisEnvironment, IMapAlgebraOp, ISupportErrorInfo

A mechanism for performing MapAlgebra operations on rasters.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Spatial Analyst Extension.

Supported Platforms

Windows, Solaris, Linux

See Also:
Serialized Form

Constructor Summary
RasterMapAlgebraOp()
          Constructs a RasterMapAlgebraOp using ArcGIS Engine.
RasterMapAlgebraOp(Object obj)
          Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
RasterMapAlgebraOp theRasterMapAlgebraOp = (RasterMapAlgebraOp) obj;
 
Method Summary
 void bindRaster(IGeoDataset geoDataset, String symbol)
          Binds a symbol to a GeoDataset.
 boolean equals(Object o)
          Compare this object with another
 IGeoDataset execute(String expression)
          Produces a GeoDataset by executing an expression.
 void getCellSize(int[] envType, double[] cellSize)
          Gets the type and value of cell size in the RasterAnalysis.
static String getClsid()
          getClsid.
 String getDefaultOutputRasterPrefix()
          The default output raster prefix.
 String getDefaultOutputVectorPrefix()
          The default output vector prefix.
 void getExtent(int[] envType, IEnvelope[] extent)
          Gets the type and values of extent in the RasterAnalysis.
 IGeoDataset getMask()
          Mask allows processing to occur only for a selected set of cells.
 ISpatialReference getOutSpatialReference()
          The output spatial reference of GeoAnalysis.
 IWorkspace getOutWorkspace()
          The output workspace of GeoAnalysis.
 int getVerifyType()
          The verify type of the RasterAnalysis.
 int hashCode()
          the hashcode for this object
 void interfaceSupportsErrorInfo(GUID riid)
          interfaceSupportsErrorInfo
 void reset()
          Remove all previously stored default rasteranalysis environments.
 void restoreToPreviousDefaultEnvironment()
          Restores to the previous default raster analysis environment.
 void setAsNewDefaultEnvironment()
          Sets the raster analysis environment of the object as new default environment.
 void setCellSize(int envType, Object cellSizeProvider)
          Sets the type and value of cell size in the RasterAnalysis.
 void setDefaultOutputRasterPrefix(String rasterPrefix)
          The default output raster prefix.
 void setDefaultOutputVectorPrefix(String vectorPrefix)
          The default output vector prefix.
 void setExtent(int envType, Object extentProvider, Object snapRasterData)
          Sets the type and values of extent in the RasterAnalysis.
 void setMaskByRef(IGeoDataset mask)
          Mask allows processing to occur only for a selected set of cells.
 void setOutSpatialReferenceByRef(ISpatialReference spatialReference)
          The output spatial reference of GeoAnalysis.
 void setOutWorkspaceByRef(IWorkspace workspace)
          The output workspace of GeoAnalysis.
 void setVerifyType(int verifyType)
          The verify type of the RasterAnalysis.
 void unbindRaster(String symbolName)
          Unbind a symbol.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface com.esri.arcgis.interop.RemoteObjRef
getJintegraDispatch, release
 

Constructor Detail

RasterMapAlgebraOp

public RasterMapAlgebraOp()
                   throws IOException,
                          UnknownHostException
Constructs a RasterMapAlgebraOp using ArcGIS Engine.

Throws:
IOException - if there are interop problems
UnknownHostException - if there are interop problems

RasterMapAlgebraOp

public RasterMapAlgebraOp(Object obj)
                   throws IOException
Deprecated. As of ArcGIS 9.2, replaced by normal Java casts.
RasterMapAlgebraOp theRasterMapAlgebraOp = (RasterMapAlgebraOp) obj;

Construct a RasterMapAlgebraOp using a reference to such an object returned from ArcGIS Engine or Server. This is semantically equivalent to casting obj to RasterMapAlgebraOp.

Parameters:
obj - an object returned from ArcGIS Engine or Server
Throws:
IOException - if there are interop problems
Method Detail

getClsid

public static String getClsid()
getClsid.


equals

public boolean equals(Object o)
Compare this object with another

Overrides:
equals in class Object

hashCode

public int hashCode()
the hashcode for this object

Overrides:
hashCode in class Object

setCellSize

public void setCellSize(int envType,
                        Object cellSizeProvider)
                 throws IOException,
                        AutomationException
Sets the type and value of cell size in the RasterAnalysis.

Remarks

envType

An enumeration type specifying the raster cellsize environment settings for analysis. All subsequent results will be to the value specified. It can be of type

esriRasterEnvMaxOf The largest cell size of all input raster datasets that are specifed in the function. This is the default.

This option is not suitable for methods such as IInterpolationOp::IDW, IDensityOp:KernalDensity etc. where features are the only inputs. Use esriRasterEnvValue instead.

esriRasterEnvMinOf - Smallest cell size of all input raster datasets.

This option is not suitable for methods such as IInterpolationOp::IDW, IDensityOp:KernalDensity etc. where features are the only inputs. Use esriRasterEnvValue instead

esriRasterEnvValue - Any user specified value for the cell size.

Use this option to specify a particular value for a cell size or for methods such as IInterpolationOp::IDW, IDensityOp:KernalDensity etc. where features are the only input.

[cellSizeProvider]

A specified value (double) or RasterDataset that is used to provide the cellsize environment value.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setCellSize in interface IRasterAnalysisEnvironment
Parameters:
envType - A com.esri.arcgis.geoanalyst.esriRasterEnvSettingEnum constant (in)
cellSizeProvider - A Variant (in, optional, pass null if not required)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getCellSize

public void getCellSize(int[] envType,
                        double[] cellSize)
                 throws IOException,
                        AutomationException
Gets the type and value of cell size in the RasterAnalysis.

Remarks

envType

will return an enumeration type constant specifying the raster cellsize environment settings for analysis. It can be of type

esriRasterEnvMaxOf - largest cell size of all input datasets. This is the default.

esriRasterEnvMinOf - smallest cell size of all input datasets

esriRasterEnvValue - User specified value.

cellsize

returns a value that specifying the current environment setting for cellsize

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getCellSize in interface IRasterAnalysisEnvironment
Parameters:
envType - A com.esri.arcgis.geoanalyst.esriRasterEnvSettingEnum constant (out: use single element array)
cellSize - The cellSize (out: use single element array)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setExtent

public void setExtent(int envType,
                      Object extentProvider,
                      Object snapRasterData)
               throws IOException,
                      AutomationException
Sets the type and values of extent in the RasterAnalysis.

Remarks

envType

An enumeration type specifying the raster extent environment settings for analysis. All subsequent results will be to this extent. It can be of type

esriRasterEnvMinOf Intersection of Inputs - All input feature extents are intersected and the extent common to all is used as the extent values for the study area. This is the default.

esriRasterEnvMaxOf - Union of Inputs - All input feature extents are combined and the outer extent of the union is used.

esriRasterEnvValue - Value - User specified values for the Left, Right, Top and Bottom extent (x, y values) of the study area.

[extentProvider]

An envelope object supporting IEnvelope interface or RasterDataset that is used to provide the environment values of the analysis extent.

[snapRasterData]

A RasterDataset that can be used to snap all output raster datasets to the cell registration of the specified raster. All subsequent results will share the lower-left corner and cell size of the specified raster.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setExtent in interface IRasterAnalysisEnvironment
Parameters:
envType - A com.esri.arcgis.geoanalyst.esriRasterEnvSettingEnum constant (in)
extentProvider - A Variant (in, optional, pass null if not required)
snapRasterData - A Variant (in, optional, pass null if not required)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getExtent

public void getExtent(int[] envType,
                      IEnvelope[] extent)
               throws IOException,
                      AutomationException
Gets the type and values of extent in the RasterAnalysis.

Remarks

envType

will return an enumeration constant specifying the raster extent environment settings for analysis. It can be of type,

esriRasterEnvMinOf Intersection of Inputs - All input feature extents are intersected and the extent common to all is used as the extent values for the study area. This is the default.

esriRasterEnvMaxOf - Union of Inputs - All input feature extents are combined and the outer extent of the union is used.

esriRasterEnvValue - Value - User specified values for the Left, Right, Top and Bottom extent (x, y values) of the study area.

extent

An envelope object supporting IEnvelope interface used to describe the values of the analysis extent.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getExtent in interface IRasterAnalysisEnvironment
Parameters:
envType - A com.esri.arcgis.geoanalyst.esriRasterEnvSettingEnum constant (out: use single element array)
extent - A reference to a com.esri.arcgis.geometry.IEnvelope (out: use single element array)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setMaskByRef

public void setMaskByRef(IGeoDataset mask)
                  throws IOException,
                         AutomationException
Mask allows processing to occur only for a selected set of cells.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setMaskByRef in interface IRasterAnalysisEnvironment
Parameters:
mask - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getMask

public IGeoDataset getMask()
                    throws IOException,
                           AutomationException
Mask allows processing to occur only for a selected set of cells.

Remarks

The mask can be a reference to a Raster, RasterDataset, RasterBand, or RasterDescriptor object or FeatureClass, FeatureClassDescriptor object.

The mask identifies only those cells within the analysis extent that will be considered when performing an action. Only the identified cells will be processed in subsequent output raster datasets. All other cells are characterized as nodata.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getMask in interface IRasterAnalysisEnvironment
Returns:
A reference to a com.esri.arcgis.geodatabase.IGeoDataset
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setVerifyType

public void setVerifyType(int verifyType)
                   throws IOException,
                          AutomationException
The verify type of the RasterAnalysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setVerifyType in interface IRasterAnalysisEnvironment
Parameters:
verifyType - A com.esri.arcgis.geoanalyst.esriRasterVerifyEnum constant (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getVerifyType

public int getVerifyType()
                  throws IOException,
                         AutomationException
The verify type of the RasterAnalysis.

Remarks

The value is an enumeration environment setting that contols the way that an output RasterDatasets are written to file when during analysis. The verify enumeration can be of type

esriRasterEnvVerifyOn - specifies that the user will be prompted to verify the output already exists and it is okay to overwrite it

esriRasterEnvVerifyOff - specifies that output data will be automatically overwritten if already exists. This is the default environment setting.

esriRasterEnvVerifyError - specifies that an error will be produced when the output already exists.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getVerifyType in interface IRasterAnalysisEnvironment
Returns:
A com.esri.arcgis.geoanalyst.esriRasterVerifyEnum constant
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getDefaultOutputRasterPrefix

public String getDefaultOutputRasterPrefix()
                                    throws IOException,
                                           AutomationException
The default output raster prefix.

Remarks

The user specified prefix which is included to all temporary output RasterDatasets during analysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getDefaultOutputRasterPrefix in interface IRasterAnalysisEnvironment
Returns:
The rasterPrefix
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setDefaultOutputRasterPrefix

public void setDefaultOutputRasterPrefix(String rasterPrefix)
                                  throws IOException,
                                         AutomationException
The default output raster prefix.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setDefaultOutputRasterPrefix in interface IRasterAnalysisEnvironment
Parameters:
rasterPrefix - The rasterPrefix (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getDefaultOutputVectorPrefix

public String getDefaultOutputVectorPrefix()
                                    throws IOException,
                                           AutomationException
The default output vector prefix.

Remarks

The user specified prefix which is included to all temporary output Shapefiles during analysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getDefaultOutputVectorPrefix in interface IRasterAnalysisEnvironment
Returns:
The vectorPrefix
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setDefaultOutputVectorPrefix

public void setDefaultOutputVectorPrefix(String vectorPrefix)
                                  throws IOException,
                                         AutomationException
The default output vector prefix.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setDefaultOutputVectorPrefix in interface IRasterAnalysisEnvironment
Parameters:
vectorPrefix - The vectorPrefix (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setAsNewDefaultEnvironment

public void setAsNewDefaultEnvironment()
                                throws IOException,
                                       AutomationException
Sets the raster analysis environment of the object as new default environment.

Remarks

Will set all current environment settings of the RasterAnalysis object as the new default environment. All subsequent analysis will use the set object properties unless otherwise specified.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setAsNewDefaultEnvironment in interface IRasterAnalysisEnvironment
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

restoreToPreviousDefaultEnvironment

public void restoreToPreviousDefaultEnvironment()
                                         throws IOException,
                                                AutomationException
Restores to the previous default raster analysis environment.

Remarks

This will restore the default environment to the settings of the "previous" RasterAnalysisEnvironment object used to set the default environement. Note: If multiple default environments have been set it will reference the past settings one at a time in order of sequence.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
restoreToPreviousDefaultEnvironment in interface IRasterAnalysisEnvironment
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

reset

public void reset()
           throws IOException,
                  AutomationException
Remove all previously stored default rasteranalysis environments.

Remarks

This method can be used to restore the system default raster environment settings for extent, cell size, precision, spatial reference and/or current workspace for analysis. This will change all previously altered environment settings made to the RasterAnlaysis object back to the original settings.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
reset in interface IRasterAnalysisEnvironment
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setOutWorkspaceByRef

public void setOutWorkspaceByRef(IWorkspace workspace)
                          throws IOException,
                                 AutomationException
The output workspace of GeoAnalysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setOutWorkspaceByRef in interface IGeoAnalysisEnvironment
Parameters:
workspace - A reference to a com.esri.arcgis.geodatabase.IWorkspace (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getOutWorkspace

public IWorkspace getOutWorkspace()
                           throws IOException,
                                  AutomationException
The output workspace of GeoAnalysis.

Remarks

The variable is an object specifying the directory or subdirectory to contain the output rasterdataset

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getOutWorkspace in interface IGeoAnalysisEnvironment
Returns:
A reference to a com.esri.arcgis.geodatabase.IWorkspace
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

setOutSpatialReferenceByRef

public void setOutSpatialReferenceByRef(ISpatialReference spatialReference)
                                 throws IOException,
                                        AutomationException
The output spatial reference of GeoAnalysis.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
setOutSpatialReferenceByRef in interface IGeoAnalysisEnvironment
Parameters:
spatialReference - A reference to a com.esri.arcgis.geometry.ISpatialReference (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

getOutSpatialReference

public ISpatialReference getOutSpatialReference()
                                         throws IOException,
                                                AutomationException
The output spatial reference of GeoAnalysis.

Remarks

The variable references an object that specifies the output features spatial reference. If not explicitly set the spatial reference of the input features will be used.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
getOutSpatialReference in interface IGeoAnalysisEnvironment
Returns:
A reference to a com.esri.arcgis.geometry.ISpatialReference
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

bindRaster

public void bindRaster(IGeoDataset geoDataset,
                       String symbol)
                throws IOException,
                       AutomationException
Binds a symbol to a GeoDataset.

Remarks

geoDataset

an input Raster, RasterDataset, RasterBand, or RasterDescriptor

symbol

a string name specifying the input geoDataset to be included in the execute expression

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Spatial Analyst Extension.

Supported Platforms

Windows, Solaris, Linux

Specified by:
bindRaster in interface IMapAlgebraOp
Parameters:
geoDataset - A reference to a com.esri.arcgis.geodatabase.IGeoDataset (in)
symbol - The symbol (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

execute

public IGeoDataset execute(String expression)
                    throws IOException,
                           AutomationException
Produces a GeoDataset by executing an expression.

Remarks

expression

a string statement specifying a map algebra equation.

Symbol objects created from IMapAlgebra::BindRaster must be surrounded by "[ ]"
Example. "[Ras01] + [Ras02]"

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Spatial Analyst Extension.

Supported Platforms

Windows, Solaris, Linux

Specified by:
execute in interface IMapAlgebraOp
Parameters:
expression - The expression (in)
Returns:
A reference to a com.esri.arcgis.geodatabase.IGeoDataset
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

unbindRaster

public void unbindRaster(String symbolName)
                  throws IOException,
                         AutomationException
Unbind a symbol.

Remarks

symbolName

a string specifying the name of the raster symbol object created from IMapALgebra::BindRaster

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Spatial Analyst Extension.

Supported Platforms

Windows, Solaris, Linux

Specified by:
unbindRaster in interface IMapAlgebraOp
Parameters:
symbolName - The symbolName (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.

interfaceSupportsErrorInfo

public void interfaceSupportsErrorInfo(GUID riid)
                                throws IOException,
                                       AutomationException
interfaceSupportsErrorInfo

Description

Indicates whether the interface supports IErrorInfo.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Supported Platforms

Windows, Solaris, Linux

Specified by:
interfaceSupportsErrorInfo in interface ISupportErrorInfo
Parameters:
riid - A Structure: com.esri.arcgis.support.ms.stdole.GUID (in)
Throws:
IOException - If there are interop problems.
AutomationException - If the ArcObject component throws an exception.